SQL Nodes Fails to Automatically Reconnecting to Data Nodes; Read-Only Mode
(Doc ID 1968263.1)
Last updated on AUGUST 09, 2018
Applies to:MySQL Cluster - Version 7.1 and later
Information in this document applies to any platform.
After the MySQL nodes have lost connection to the data nodes, they fail to automatically reconnect. Examples of cases of the disconnect are (but not limited to):
- Network maintenance
- Network failure
- Missed heartbeats
- The node was disconnected due to lagging (Exceeded MaxBufferedEpochs (100 > 100)).
This means the NDBCluster tables are in read only mode or not available at all.
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